Question

Which of the following is a coarse crusher?

• A. Dire crusher
• B. Conical crusher
• C. Single roll crusher
• D. Jaw crusher

Hint:

Jaw crushers are widely used for coarse crushing, reducing large materials to smaller sizes.

Answer 1

The Correct Option is D

Step 1: Identifying coarse crushers.
Jaw crushers are used for coarse crushing of materials. They work by compressing materials between two jaws, one fixed and the other movable. These crushers are used to reduce the size of large materials like rocks.

Step 2: Explanation of options.
- (D) Jaw crusher is the correct answer, as it is used for coarse crushing. - (A), (B), and (C) These crushers are not primarily used for coarse crushing.

Final Answer: \[ \boxed{\text{D) Jaw crusher}} \]